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Drile giùlan seulaichte bts IADC126 9 7/8 òirleach (250mm)
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Solaraiche drile tricone IADC126 12 1/4 òirleach (311mm) airson drileadh math
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Beagan airson drileadh math IADC127 3 7/8 ″ òirleach (98.4mm)
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Drileadh tricone API IADC127 4 5/8 òirleach (118mm) airson a reic
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Factaraidh pìosan seulaichte IADC127 6 òirleach (152mm)
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Pìosan drileadh domhainn IADC127 12 1/4 ” (311mm)
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Bit tricone daoimean IADC216 7.5 òirleach (190mm)
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Factaraidh bits Tricone IADC216 9 7/8inches (250.8mm)